Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Performance-Based Design of Self-Centering Steel Frame Systems
Innovative self-centering (SC) moment resisting frames (SC-MRFs) and concentrically-braced frames (SC-CBFs) are being developed. This paper focuses on SC-MRFS. The beams of an SC-MRF are post-tensioned to the columns using high strength post-tensioning (PT) strands. A beam web friction device (WFD) is included in each beam-column connection to dissipate energy under seismic loading. Together, the PT strands and WFD provide the flexural resistance of the beam-column connections. The connection behavior is characterized by gap opening and closing at the beam-column interface. The SC-MRFs in this study are designed to meet two primary seismic performance objectives, namely, (1) no damage or residual drift under the Design Basis Earthquake (DBE), leading to immediate occupancy performance after the DBE, and (2) collapse prevention performance under the Maximum Considered Earthquake. A 7-bay, 4-story SC-MRF prototype building was designed for a stiff soil site in the Los Angeles area using a performance-based design procedure with the above performance objectives. A 0.6-scale model of a 2-bay SC-MRF from the prototype building was developed and tested at Lehigh University using the hybrid simulation method. Experimental results of earthquake simulations on the SC-MRF are used to assess the design procedure. Related research on SC-CBFs is introduced.
Performance-Based Design of Self-Centering Steel Frame Systems
Innovative self-centering (SC) moment resisting frames (SC-MRFs) and concentrically-braced frames (SC-CBFs) are being developed. This paper focuses on SC-MRFS. The beams of an SC-MRF are post-tensioned to the columns using high strength post-tensioning (PT) strands. A beam web friction device (WFD) is included in each beam-column connection to dissipate energy under seismic loading. Together, the PT strands and WFD provide the flexural resistance of the beam-column connections. The connection behavior is characterized by gap opening and closing at the beam-column interface. The SC-MRFs in this study are designed to meet two primary seismic performance objectives, namely, (1) no damage or residual drift under the Design Basis Earthquake (DBE), leading to immediate occupancy performance after the DBE, and (2) collapse prevention performance under the Maximum Considered Earthquake. A 7-bay, 4-story SC-MRF prototype building was designed for a stiff soil site in the Los Angeles area using a performance-based design procedure with the above performance objectives. A 0.6-scale model of a 2-bay SC-MRF from the prototype building was developed and tested at Lehigh University using the hybrid simulation method. Experimental results of earthquake simulations on the SC-MRF are used to assess the design procedure. Related research on SC-CBFs is introduced.
Performance-Based Design of Self-Centering Steel Frame Systems
Geotechnical,Geological
Fardis, Michael N. (Herausgeber:in) / Sause, Richard (Autor:in) / Ricles, James M. (Autor:in) / Lin, Ying-Cheng (Autor:in) / Seo, Choung-Yeol (Autor:in) / Roke, David (Autor:in)
12.06.2010
10 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Performance-Based Design of Self-Centering Steel Frame Systems
| British Library Conference Proceedings | 2010
| British Library Conference Proceedings | 2008